DE69120422D1 - METAL MELTING STOVE - Google Patents

METAL MELTING STOVE

Info

Publication number
DE69120422D1
DE69120422D1 DE69120422T DE69120422T DE69120422D1 DE 69120422 D1 DE69120422 D1 DE 69120422D1 DE 69120422 T DE69120422 T DE 69120422T DE 69120422 T DE69120422 T DE 69120422T DE 69120422 D1 DE69120422 D1 DE 69120422D1
Authority
DE
Germany
Prior art keywords
slag
furnace
charge
fact
volume
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
DE69120422T
Other languages
German (de)
Other versions
DE69120422T2 (en
Inventor
Richard Taft
David Edwards
Reiner Graf
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Cokeless Cupolas Ltd
Original Assignee
Cokeless Cupolas Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Cokeless Cupolas Ltd filed Critical Cokeless Cupolas Ltd
Publication of DE69120422D1 publication Critical patent/DE69120422D1/en
Application granted granted Critical
Publication of DE69120422T2 publication Critical patent/DE69120422T2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C1/00—Refining of pig-iron; Cast iron
    • C21C1/08—Manufacture of cast-iron
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B11/00—Making pig-iron other than in blast furnaces
    • C21B11/02—Making pig-iron other than in blast furnaces in low shaft furnaces or shaft furnaces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B1/00—Shaft or like vertical or substantially vertical furnaces
    • F27B1/08—Shaft or like vertical or substantially vertical furnaces heated otherwise than by solid fuel mixed with charge

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)
  • Resistance Heating (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)

Abstract

The conventional operation of a cokeless cupola furnace has a requirement for a low volume of slag to be produced, because of the fact that there is no ash from coke to remove from the charge, and the fact that flux added to the charge to form slag eats away at the furnace lining, and at the bed of refractory spheres. Running the furnace at low slag volumes makes the slag thick and can cause blockage of the slagging and tapping box. The invention adds more flux materials than is conventional, preferably including silica in the form of broken bottles, so as to deliberately increase the volume of slag, improving the flow. Care must be taken not to add too much slag-forming materials.
DE69120422T 1990-09-12 1991-09-05 METAL MELTING STOVE Expired - Fee Related DE69120422T2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB909019894A GB9019894D0 (en) 1990-09-12 1990-09-12 Metal-melting furnaces
PCT/GB1991/001510 WO1992004587A1 (en) 1990-09-12 1991-09-05 Metal-melting furnaces

Publications (2)

Publication Number Publication Date
DE69120422D1 true DE69120422D1 (en) 1996-07-25
DE69120422T2 DE69120422T2 (en) 1996-11-28

Family

ID=10682055

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69120422T Expired - Fee Related DE69120422T2 (en) 1990-09-12 1991-09-05 METAL MELTING STOVE

Country Status (9)

Country Link
US (1) US5294243A (en)
EP (1) EP0548182B1 (en)
JP (1) JPH06501094A (en)
KR (1) KR100198514B1 (en)
AT (1) ATE139619T1 (en)
DE (1) DE69120422T2 (en)
ES (1) ES2090349T3 (en)
GB (1) GB9019894D0 (en)
WO (1) WO1992004587A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4339675C1 (en) * 1993-11-22 1995-05-04 Messer Griesheim Gmbh Method and device for melting solid combustion residues
SE0201453D0 (en) * 2002-05-10 2002-05-10 Luossavaara Kiirunavaara Ab Method to improve iron production rate in a blast furnace
US20110138340A1 (en) * 2009-12-09 2011-06-09 Microsoft Corporation Rotating Hierarchy Cone User Interface

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1239004B (en) * 1962-03-14 1967-04-20 Licentia Gmbh Alternating current machine, in particular alternating current generator
DE1932162A1 (en) * 1969-06-25 1971-01-07 Strico Ges Fuer Metallurg Und Reducing the amount of undesirable ferrous - cpds in a cupola furnace during batch
GB1239004A (en) * 1969-09-11 1971-07-14
SE347999B (en) * 1970-05-28 1972-08-21 Boliden Ab
ZA72390B (en) * 1971-02-01 1972-09-27 Hayes Shell Cast Ltd Metal-melting furnaces
US4137071A (en) * 1974-12-23 1979-01-30 Ford Motor Company Low cost method of fluidizing cupola slag (A)
ATE86674T1 (en) * 1987-08-21 1993-03-15 Voest Alpine Stahl Donawitz METHOD FOR MELTING SCRAP, SPONGE IRON AND/OR SOLID PIG IRON OR. DGL.
DE3742349C1 (en) * 1987-12-14 1988-12-08 Korf Engineering Gmbh Process for melting scrap metal and device for carrying out the process
DD282363A7 (en) * 1988-02-19 1990-09-12 Sbkw Keulahuette Krauschwitz V METHOD FOR OPERATING A COOLLESS, GAS FIRED KUPOLOF

Also Published As

Publication number Publication date
GB9019894D0 (en) 1990-10-24
KR930702653A (en) 1993-09-09
KR100198514B1 (en) 1999-06-15
US5294243A (en) 1994-03-15
EP0548182A1 (en) 1993-06-30
ES2090349T3 (en) 1996-10-16
EP0548182B1 (en) 1996-06-19
DE69120422T2 (en) 1996-11-28
JPH06501094A (en) 1994-01-27
ATE139619T1 (en) 1996-07-15
WO1992004587A1 (en) 1992-03-19

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee